Key: Step 433. Tanytarsini 75 Tanytarsus

433a. Fringe of anal lobes in two groups separated by a gap (137l.jpg). The 2-7 taeniae of the distal group are stouter and longer than those of the anterior group.

Tanytarsus lugens

433b. Fringe of anal lobes forming a complete series.

Step 434. Tanytarsini 75a Tanytarsus
Decision path